n-th derivative of sec(x)^sinh(x) at x=0.

Terms

a(0) =1a(1) =0a(2) =0a(3) =3a(4) =0a(5) =20a(6) =90a(7) =203a(8) =3360a(9) =11640a(10) =123480a(11) =971883a(12) =7155720a(13) =81842540a(14) =689969280a(15) =8098733243a(16) =87787889280